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last 30 patents
Information
Patent Grant
Copper-tin brazing wire and preparation method and use thereof
Patent number
12,109,652
Issue date
Oct 8, 2024
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD
Weimin Long
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Information
Patent Grant
Copper-phosphorus brazing wire for brazing copper alloy spectacle f...
Patent number
12,103,113
Issue date
Oct 1, 2024
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD
Yafang Cheng
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Information
Patent Grant
Copper-phosphorus-tin brazing wire and preparation method thereof
Patent number
11,931,828
Issue date
Mar 19, 2024
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD
Sujuan Zhong
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Information
Patent Grant
Brazing material outer coat and preparation method thereof, in-situ...
Patent number
10,987,747
Issue date
Apr 27, 2021
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD
Weimin Long
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Patents Applications
last 30 patents
Information
Patent Application
Copper-phosphorus-zinc-tin Brazing Sheet and Preparation Method and...
Publication number
20240017359
Publication date
Jan 18, 2024
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD.
Quanbin LU
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Information
Patent Application
Copper-Phosphorus Brazing Wire for Brazing Copper Alloy Spectacle F...
Publication number
20230405732
Publication date
Dec 21, 2023
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD.
Yafang CHENG
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Information
Patent Application
Copper-Phosphorus-Tin Brazing Wire and Preparation Method Thereof
Publication number
20230405731
Publication date
Dec 21, 2023
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD.
Sujuan ZHONG
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Information
Patent Application
Copper-tin Brazing Wire and Preparation Method and Use thereof
Publication number
20230373036
Publication date
Nov 23, 2023
ZHENGZHOU RESEARCH INSTITUTE OF MECHANICAL ENGINEERING CO., LTD.
Weimin LONG
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Information
Patent Application
A brazing material outer coat and preparation method thereof, in-si...
Publication number
20200261995
Publication date
Aug 20, 2020
Zhengzhou Research Institute of Mechanical Engineering Co., Ltd.
Weimin LONG
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